Basically experience is the best teacher and when you have experienced the slump but you still experience the same slump at different times then that means something is wrong, meaning you are included in the category of people who cannot learn from experience and from the story you tell maybe I can put you in the category of people who can learn from experience through self-evaluation scenarios. On the other hand, it is a fact that humans are the place to make mistakes because they have changing natures that are sometimes influenced by several factors, meaning even though now you say that you will not make the same mistake again but I am sure that there will be a time for you to make that kind of mistake again but yes the chances are smaller, and in the context of gambling I am sure the following discipline as well as various other things that lead to risk management can only be done by gamblers when they really understand the risks.
Well it is all based on us being conscious people, if we lose, the ones who lose are us, our money, our assets and everything, it is not pleasant, I do not like to lose even 1 dollar, but when I play I do it with great hope and if I lose 1 usd or more even up to 10 usd it is because I had that money available to have fun, something like going to the movies, or going to eat a hamburger or a piece of pizza that I like so much, well that is how I see it, from there on because it would be brutality of me to spend more and put aside my obligations and commitments to fulfill with the money.